http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107805222-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D233-78 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-78 |
| filingDate | 2017-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107805222-B |
| titleOfInvention | Comprehensive utilization method of allantoin synthetic mother liquor |
| abstract | The invention relates to a comprehensive utilization method of allantoin synthetic mother liquor, which takes the allantoin synthetic mother liquor as a raw material to react with phenol and glyoxylic acid to synthesize a drug intermediate p-hydroxy phenyl hydantoin, wherein the synthesis molar yield of the p-hydroxy phenyl hydantoin calculated by the raw material phenol is 67-70%. The invention solves the problem of environmental pollution in the production process of allantoin, saves the waste liquid treatment cost and reduces the production cost of the allantoin and the p-hydroxy-phenyl-hydantoin. |
| priorityDate | 2017-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.